Subnet Mask & Wildcard Calculator
Developer UtilitiesDaily PRO ToolCalculate subnet masks, wildcard masks, binary representations, and usable host counts for CIDR /0-/32.
Subnet Mask & Wildcard Calculator
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How to Use Subnet Mask & Wildcard Calculator
Select CIDR
Use slider or quick buttons to pick /8, /16, /24, etc.
Inspect Masks
Review decimal, wildcard, and binary bitmasks.
Copy Value
Copy subnet or wildcard mask with one click.
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